EP0006970B1 - Apparatus for separating cotton waste from a customary cotton cleaning machine into reusable fibres and refuse - Google Patents

Apparatus for separating cotton waste from a customary cotton cleaning machine into reusable fibres and refuse Download PDF

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Publication number
EP0006970B1
EP0006970B1 EP19790100959 EP79100959A EP0006970B1 EP 0006970 B1 EP0006970 B1 EP 0006970B1 EP 19790100959 EP19790100959 EP 19790100959 EP 79100959 A EP79100959 A EP 79100959A EP 0006970 B1 EP0006970 B1 EP 0006970B1
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Prior art keywords
separating
roller
cotton
cylinder
carding
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EP19790100959
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German (de)
French (fr)
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EP0006970A1 (en
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Michael Langen
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Monor AG
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Monor AG
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G15/00Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
    • D01G15/02Carding machines
    • D01G15/72Arrangements for returning waste to be re-carded

Definitions

  • the invention relates to a device for separating the cotton waste from a conventional cotton cleaning machine into good fibers and dirt. Disposals are incurred when extracting cotton and cleaning cotton in the spinning mill. The exits contain a high percentage of spinnable good fibers, which are mostly lost but are to be recovered for the spinning mill.
  • the machine is known which is of simple construction and causes the outlets to be separated into good fibers and dirt.
  • the machine is known under the name Shirley device.
  • the task of the Shirley device is to completely separate the good fibers from the dirt, as is necessary for testing purposes.
  • the Shirley device consists of a feed device and an opening roller that carries the licker-in set. The separating effect is achieved by centrifugal force and a special air flow. The material accumulating at the separation points is repeatedly presented to the feed device for complete separation; this continues until complete separation is achieved.
  • DE-B-1 202195 shows a machine for opening and cleaning or mixing fiber material, in particular cotton and wool waste. It is a step opener and a shaft located in front of its inlet, the bottom of which is designed as a flap which is opened in each case when the shaft contains a predetermined amount of fiber material.
  • the outlet of the step opener is connected on the one hand via a pipe with a condenser feeding the shaft to a circuit into which the inlet of the fiber material opens, and on the other hand connected to an output line, one of one for an alternative connection to the condenser and the output line Switchgear controlled flap is provided. By appropriately controlling this flap, the fiber material runs through the step opener until a very uniform mixture is achieved, after which it is conveyed away via the tube mentioned.
  • GB-A-884245 shows a carding machine in which the drum roll, viewed in the direction of rotation, is cleaned behind the take-up roll by an axially reciprocating suction nozzle of a blower, the material removed in this way being removed by a nozzle in the area between the feed trough and a preliminary roll Carding process is fed again.
  • the long fibers that can still be used are to be reintroduced into the process, while the fibers and impurities that are too short are to be eliminated.
  • the exits that accumulate however, still have a considerable proportion of usable fibers, which is economically desirable to recover.
  • the invention is therefore based on the object of specifying a device which separates the exits from cotton processing processes in a particularly efficient manner into good fibers and dirt, which is to be achieved economically by providing a device which is matched in its throughput to the respective cotton processing process and which in Neighborhood to this main process can be operated, the resulting good fibers are reintroduced into the haptic process.
  • the separating device is provided with a plurality of dressing rollers which are connected to one another and which are used in the carding position with respect to one another and to which separating points for different fractions are assigned, the separating points for controlling the material flow in the separating device being designed so as to be lockable , and that the clothing rollers rotate in the same direction of rotation and produce an increasingly strong centrifugal force effect, d. H. have increasing peripheral speed and / or decreasing diameter.
  • the outlets are fed in portions to a separating device via a feed device and broken down into different fractions.
  • the Fractions contain different concentrations of good fibers and dirt compared to the exits presented.
  • Each fraction is collected separately and after passing through at least one portion in fractions it is again presented to the separating device.
  • the separating device is reversed, ie each fraction undergoes processing in accordance with its character. It was found that typical material consistencies always occur at the separation points of the individual fractions, which are then specifically processed further.
  • the special further treatment can be achieved by operating the separating elements at different speeds. It is also possible to temporarily close certain separating points and thereby bridge them, so that the material takes a different route internally through the separating elements. It is also possible to feed the material to other separators bypassing upstream separators. The material passes through the separator internally until it is economically separated. That doesn't have to be the maximum possible separation.
  • the good fibers which accumulate with a specific degree of purity at certain separation points, can be fed continuously to the main process, but it is also possible for them to pass through the separation device repeatedly.
  • the waste that remains in the end is excreted.
  • a modified embodiment of the device provides that the fractions returned to the feed device are subjected to screening.
  • the loose dirt particles are separated and no longer burden the process or the actual device. Air jet sieves and cyclones have proven to be particularly suitable for this. It has also been shown that the still coarse fraction obtained at the first separation point is advantageously continuously recycled.
  • the loose dirt is sieved off and the rest of the fraction is passed on to the feed device.
  • the device consists of a feeding device, a separating device with lockable separating points, the storage points assigned to the separating points for receiving the (differently cleaned) fractions and an internal transport device for returning the material to the feeding device, for removing the waste and for transporting the good fibers into the main process .
  • the internal transport is preferably carried out pneumatically.
  • a metering device which is effective for all stores is arranged. Its task is to dissolve the amorphous (contiguous) storage content in flakes that can be transported in the air flow.
  • a pin roller meets the requirements.
  • auxiliary air can be mixed in through a special opening, thereby stabilizing the flow of flakes in the air flow.
  • the feed device has feed means which allow a sequential feed of the separation device with the individual fractions without mixing beforehand.
  • the same purpose can be achieved by arranging several parallel filling chutes that work alternately on a feed roller.
  • Further feed rollers can be arranged for the purpose of the environment of separating elements.
  • the separating members of the separating device consist of clothing rollers of known type. Several rollers can be arranged which are in the removal or carding position with respect to one another. The number of tips and the peripheral speed of the rollers expediently increase, the diameters decreasing.
  • the scraper rollers have separating points of a known type. They are designed so that they can be closed, so that in connection with an internal transport device different material guides can result or be realized by the device.
  • the fiber guiding surfaces of the separating members can also carry garnishes.
  • a garnish can be arranged on the first separating member between the feed roller and the first separating point, which is not, as usual, in the carding position for garnishing the separating member.
  • the material is dedusted together with ventilation openings that alternate between blowing and suction air.
  • the garnish acts as an intensive swirl field that loosens the dust. The special orientation of the tips prevents the garnish from filling and, unlike the dust particles, the fibers are prevented from following the air flow.
  • an opening device is used in addition to a metering device. This causes an intensive mixing of the outlets and the transport air.
  • the opening device is close to the inlet connection. It consists of garnished, rapidly rotating rollers. The axes of rotation of the garnished rollers are advantageously parallel to the axis of rotation of the vortex in the cyclone. The removal of the material is facilitated by streamlined baffles, with additional auxiliary air being supplied.
  • the device can have a programmable controller.
  • the program contains all the information necessary to implement a portion or a work cycle with all material runs, speeds of the separating elements and various possible ways. Programming is based on experience. Because of the great possibilities in the implementation of the method, the device can be converted without ver by simply reversing to ver different outlet types can be set. A more complete design of the device provides for the installation of sensors which react to relevant parameters of outlets or their fractions. Together with a process control system of known type, the device can adjust itself to an optimal mode of operation.
  • the main process 1, i. H. outlet 2 originating from a conventional cotton cleaning machine is fed to a feed device 3.
  • the feeding device 3 feeds the separating device 4.
  • the separating device 4 here consists of three separating members 41, 42 and 43, which have four separating points 51, 52, 53 and 54, three of which are closable. As a result, the material flow in the separating device 4 can be controlled differently.
  • the separating points 51, 52 and 53 are assigned memories 61, 62 and 63. They take up the resulting fractions and deliver them to an internal transport system 7.
  • the internal transport system 7 includes a metering device 71, which produces flakes from an amorphous (connected) fraction 81, 82, 83. The flakes can be transported pneumatically to the feed device 3, for example.
  • the feed device 3 has parallel filling shafts 31, 32 and 33, into which the individual fractions are fed to a feed roller without intermixing.
  • the fractions 81, 82 and 83 occurring at the separation points 5 pass through the separation device 4 in different ways and with different, ie. H. Working speeds of the separating members 41, 42 and 43 matched to the respective fraction.
  • the good fibers 9 are returned to the main working process 1, while after a certain number of runs the exploited waste 10 is separated out. This is continued in portions.
  • FIG. 2 A modification of the device is shown in FIG. 2.
  • a screening device is inserted within the internal transport system 7. It has been shown that in the first fraction 81 many loose, i.e. H. Debris that is not related to fibers is contained and can be removed immediately. This relieves the separation device 4. A fraction can be continuously screened and fed back. It is also possible for all fractions 81, 82 and 83 to be screened and fed back in succession.
  • a known cyclone 101 is used here as the screening device, which has an additional opening device 102 from its inlet connection. It creates an intensive mixture of material and air, whereby the flakes are broken down down to their individual components. The sufficiently large amount of air required for this is supplied by auxiliary air ducts 104, which open both at the opening device 102 and at the metering device 71. At the same time, they make it easier to deliver materials to these workplaces.
  • the cyclone 101 is followed by the feed device 3.
  • the device according to FIG. 1 can be expanded to include the devices from FIG. 2 if necessary.
  • FIG. 3 a simple embodiment of a device according to the invention is shown semi-schematically.
  • Interconnecting clothing rollers 411, 422 and 433 are used here as separating elements. They have lockable separation points 511, 522 and 533.
  • the clothing rollers 411, 422 and 433 are used in carding position with respect to each other. They have an increasing number of peaks and a gradually increasing centrifugal force effect, i. H. that the centrifugal force on the clothing rollers should increase from left to right.
  • the material can be removed, for example, by suction air and by blowing air, as well as by a take-off roller 554 shown here, which works together with a knock-off roller 555.
  • Pickup roller and chopper roller 555 are quiet and energy-saving.
  • FIG. 4 shows a specially designed fiber guide surface 600, as is used in particular behind a feed roller 300.
  • the roller 300 in FIG. 4 corresponds to the roller over the clothing roller 411 in FIG. 3. 4 serves to generate an intense friction and vortex field.
  • the tips 601 are not in carding position to the tips of the clothing roller 411.
  • Blown air guides 603 and suction air guides 604 open in alternating sequence between the tips 601. Filter outlets with a high dust content, for example, can be dedusted in this way.
  • the fibrous components cannot follow the suction air flow 604 due to the special orientation of the tips 601 of the garnish.
  • the suction air guides are opposite to the direction of movement predetermined by the centrifugal force.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum Auftrennen der Baumwollabgänge einer üblichen Baumwollreinigungsmaschine in Gutfasern und Schmutz. Bei der Gewinnung von Baumwolle sowie bei der Baumwollreinigung in der Spinnerei fallen Abgänge an. Die Abgänge enthalten einen hohen Prozentsatz spinnbarer Gutfasern, die meistens verloren sind, aber für die Spinnerei zurückgewonnen werden sollen.The invention relates to a device for separating the cotton waste from a conventional cotton cleaning machine into good fibers and dirt. Disposals are incurred when extracting cotton and cleaning cotton in the spinning mill. The exits contain a high percentage of spinnable good fibers, which are mostly lost but are to be recovered for the spinning mill.

Im Stand der Technik werden die Abfälle gesammelt und als minderwertige Rohstoffe an spinnereifremde Produktionen abgegeben.In the prior art, the waste is collected and given to inferior productions as inferior raw materials.

Es wurde versucht, die Abgänge durch eine Anzahl geeigneter Maschinen wiederaufzubereiten. Dies gelingt zwar, doch ist der Durchsatz solcher Anlagen im Verhältnis zu den anfallenden Abgängen so hoch, daß sie nicht wirtschaftlich ausgelastet werden können. Andererseits ist ein Transport der Abgänge über große Strecken zu einer zentralen Weiterverarbeitung nicht wirtschaftlich, so daß solche Anlagen keine weite Verbreitung gefunden haben.Attempts have been made to reprocess the exits using a number of suitable machines. Although this succeeds, the throughput of such plants is so high in relation to the waste that arises that they cannot be used economically. On the other hand, transporting the outlets over long distances to central processing is not economical, so that such systems have not been widely used.

Weiter ist eine Maschine bekannt, die einfach aufgebaut ist und eine Trennung der Abgänge in Gutfascrn und Schmutz bewirkt. Die Maschine ist unter dem Namen Shirley-Gerät bekannt. Die Aufgabe des Shirley-Gerätes besteht in einer vollständigen Trennung der Gutfasern vom Schmutz, wie sie für Prüfzwecke notwendig ist. Das Shirley-Gerät besteht aus einer Speisevorrichtung und einer Auflösewalze, die die Vorreißergarnitur trägt. Durch die Fliehkraft und eine besondere Luftführung wird die trennende Wirkung erreicht. Das an den Ausscheidestellen anfallende Material wird zur vollständigen Trennung wiederholt der Speisevorrichtung vorgelegt; das geschieht so lange, bis die vollständige Trennung erreicht ist.Furthermore, a machine is known which is of simple construction and causes the outlets to be separated into good fibers and dirt. The machine is known under the name Shirley device. The task of the Shirley device is to completely separate the good fibers from the dirt, as is necessary for testing purposes. The Shirley device consists of a feed device and an opening roller that carries the licker-in set. The separating effect is achieved by centrifugal force and a special air flow. The material accumulating at the separation points is repeatedly presented to the feed device for complete separation; this continues until complete separation is achieved.

Der Stand der Technik ist unbefriedigend, weil es wie angedeutet lediglich Anlagen gibt, die sehr große Mengen Abgänge brauchbar aufarbeiten können. Vielerorts sind sie jedoch nicht sinnvoll einsetzbar, da nicht genügend Abfälle zur Verfügung stehen.The state of the art is unsatisfactory because, as indicated, there are only plants that can usably process very large quantities of waste. In many places, however, they cannot be used sensibly because there is not enough waste available.

Die im Shirley-Gerät durchsetzbaren Mengen sind so gering, daß an einen industriellen Einsatz nicht gedacht werden kann.The quantities that can be implemented in the Shirley device are so small that industrial use cannot be considered.

Die DE-B-1 202195 zeigt eine Maschine zum Öffnen und Reinigen bzw. Mischen von Fasergut, insbesondere von Baumwolle und Wollabfällen. Es handelt sich um einen Stufenöffner und einen vor dessen Einlaß liegenden Schacht, dessen Boden als eine Klappe ausgebildet ist, die jeweils geöffnet wird, wenn der Schacht eine vorbestimmte Fasergutmenge enthält. Der Auslaß des Stufenöffners ist dabei einerseits über ein Rohr mit einem den Schacht speisenden Kondenser zu einem Kreislauf verbunden, in den der Einlauf des Fasergutes mündet, und andererseits mit einer Ausgangsleitung verbunden, wobei für eine alternative Verbindung mit dem Kondenser und der Ausgangsleitung eine von einem Schaltgerät gesteuerte Klappe vorgesehen ist. Durch eine entsprechende Steuerung dieser Klappe läuft das Fasergut so oft durch den Stufenöffner, bis eine ganz gleichmäßige Mischung erreicht ist, wonach es über das genannte Rohr abgefördert wird.DE-B-1 202195 shows a machine for opening and cleaning or mixing fiber material, in particular cotton and wool waste. It is a step opener and a shaft located in front of its inlet, the bottom of which is designed as a flap which is opened in each case when the shaft contains a predetermined amount of fiber material. The outlet of the step opener is connected on the one hand via a pipe with a condenser feeding the shaft to a circuit into which the inlet of the fiber material opens, and on the other hand connected to an output line, one of one for an alternative connection to the condenser and the output line Switchgear controlled flap is provided. By appropriately controlling this flap, the fiber material runs through the step opener until a very uniform mixture is achieved, after which it is conveyed away via the tube mentioned.

Bei dieser Maschine ist weder eine Auftrennung des Fasergutes in unterschiedlich gereinigte Fraktionen noch deren individuelle Rückführung an die Einspeisestelle vorgesehen, ebensowenig wie eine variable Steuerung des Materialflusses über unterschiedlich umlaufende Garniturwalzen. Diese Maschine ist daher in keiner Weise dazu geeignet, die Baumwollabgänge einer üblichen Reinigungsmaschine in einer wirtschaftlich vertretbaren Weise in Gutfasern und Schmutz aufzutrennen.With this machine, there is neither a separation of the fiber material into differently cleaned fractions nor their individual return to the feed point, nor is there any variable control of the material flow via differently rotating clothing rollers. This machine is therefore in no way suitable for separating the cotton waste from a conventional cleaning machine into good fibers and dirt in an economically justifiable manner.

Die GB-A-884245 zeigt eine Krempelmaschine, bei der die Tambourwalze in Umlaufrichtung gesehen hinter der Abnehmerwalze von einer axial hin- und herbeweglichen Saugdüse eines Gebläses gereinigt wird, wobei das so entfernte Material durch eine Düse im Bereich zwischen der Speisemulde und einer Vorwalze dem Krempelprozeß wieder zugeführt wird. Dabei sollen die noch brauchbaren langen Fasern in den Prozeß wieder eingeführt werden, während die zu kurzen Fasern und Verunreinigungen ausgeschieden werden sollen. Die sich somit ansammelnden Abgänge weisen jedoch erfahrungsgemäß noch einen erheblichen Anteil an brauchbaren Fasern auf, die in wirtschaftlicher Weise wiederzugewinnen erwünscht ist.GB-A-884245 shows a carding machine in which the drum roll, viewed in the direction of rotation, is cleaned behind the take-up roll by an axially reciprocating suction nozzle of a blower, the material removed in this way being removed by a nozzle in the area between the feed trough and a preliminary roll Carding process is fed again. The long fibers that can still be used are to be reintroduced into the process, while the fibers and impurities that are too short are to be eliminated. Experience has shown that the exits that accumulate, however, still have a considerable proportion of usable fibers, which is economically desirable to recover.

Der Erfindung liegt also die Aufgabe zugrunde, eine Vorrichtung anzugeben, die die Abgänge aus Baumwollverarbeitungsprozessen in besonders effizienter Weise in Gutfasern und Schmutz auftrennt, was dadurch wirtschaftlich erreicht werden soll, daß eine in ihrem Durchsatz auf den jeweiligen Baumwollverarbeitungsprozeß abgestimmte Vorrichtung vorgesehen wird, die in Nachbarschaft zu diesem Hauptprozeß betrieben werden kann, wobei die anfallenden Gutfasern wieder in den Haptprozeß eingeführt werden.The invention is therefore based on the object of specifying a device which separates the exits from cotton processing processes in a particularly efficient manner into good fibers and dirt, which is to be achieved economically by providing a device which is matched in its throughput to the respective cotton processing process and which in Neighborhood to this main process can be operated, the resulting good fibers are reintroduced into the haptic process.

Diese Aufgabe wird dadurch gelöst, daß die Trennvorrichtung mit mehreren, miteinander in Verbindung stehenden Garniturwalzen versehen ist, die in Kardierstellung zueinander eingesetzt sind und denen jeweils Abscheidestellen für verschiedene Fraktionen zugeordnet sind, wobei die Abscheidestellen zur Steuerung des Materialflusses in der Trennvorrichtung wahlweise verschließbar ausgebildet sind, und daß die Garniturwalzen mit gleicher Drehrichtung umlaufen und eine zunehmend starke Fliehkraftwirkung erzeugen, d. h. zunehmende Umfangsgeschwindigkeit und/oder abnehmende Durchmesser aufweisen.This object is achieved in that the separating device is provided with a plurality of dressing rollers which are connected to one another and which are used in the carding position with respect to one another and to which separating points for different fractions are assigned, the separating points for controlling the material flow in the separating device being designed so as to be lockable , and that the clothing rollers rotate in the same direction of rotation and produce an increasingly strong centrifugal force effect, d. H. have increasing peripheral speed and / or decreasing diameter.

Die Abgänge werden über eine Speisevorrichtung portionweise einer Trennvorrichtung zugeführt und in verschiedene Fraktionen zerlegt. Die Fraktionen enthalten unterschiedliche Konzentrationen von Gutfasern und Schmutz im Vergleich zu den vorgelegten Abgängen. Jede Fraktion wird gesondert gesammelt und nach Durchlauf wenigstens einer Portion fraktionsweise der Trennvorrichtung erneut vorgelegt. Die Trennvorrichtung wird dabei umgesteuert, d. h. jede Fraktion erfährt eine ihrem Charakter gemäße Bearbeitung. Es wurde gefunden, daß an den Abscheidestellen der einzelnen Fraktionen immer typische Materialkonsistenzen auftreten, die dann gezielt weiterbearbeitet werden.The outlets are fed in portions to a separating device via a feed device and broken down into different fractions. The Fractions contain different concentrations of good fibers and dirt compared to the exits presented. Each fraction is collected separately and after passing through at least one portion in fractions it is again presented to the separating device. The separating device is reversed, ie each fraction undergoes processing in accordance with its character. It was found that typical material consistencies always occur at the separation points of the individual fractions, which are then specifically processed further.

Die besondere Weiterbehandlung kann erreicht werden, indem die Trennorgane mit geänderten Geschwindigkeiten betrieben werden. Es ist weiter möglich, bestimmte Abscheidestellen zeitweise zu schließen und damit zu überbrücken, so daß das Material intern einen anderen Weg durch die Trennorgane nimmt. Es ist weiter möglich, das Material an anderen Trennorganen unter Umgehung vorgelagerter Trennorgane einzuspeisen. Das Material durchläuft intern die Trennvorrichtung so lange, bis es in einem wirtschaftlichen Maße getrennt ist. Das muß nicht die maximal mögliche Trennung sein.The special further treatment can be achieved by operating the separating elements at different speeds. It is also possible to temporarily close certain separating points and thereby bridge them, so that the material takes a different route internally through the separating elements. It is also possible to feed the material to other separators bypassing upstream separators. The material passes through the separator internally until it is economically separated. That doesn't have to be the maximum possible separation.

Die Gutfasern, die mit einem spezifischen Reinheitsgrad an bestimmten Abscheidestellen angereichert anfallen, können dem Hauptprozeß ständig zugeführt werden, es ist aber auch möglich, wenn diese die Trennvorrichtung wiederholt passieren. Der letztendlich verbleibende Abfall wird ausgeschieden.The good fibers, which accumulate with a specific degree of purity at certain separation points, can be fed continuously to the main process, but it is also possible for them to pass through the separation device repeatedly. The waste that remains in the end is excreted.

Eine abgeänderte Ausführungsform der Vorrichtung sieht vor, daß die an die Speisevorrichtung zurückgelieferten Fraktionen einer Siebung unterworfen werden. Dabei werden die losen Schmutzpartikel abgetrennt und belasten den Prozeß bzw. die eigentliche Vorrichtung nicht mehr. Als besonders geeignet haben sich hierfür Luftstrahlsiebe und Zyklone erwiesen. Es hat sich weiter gezeigt, daß die an der ersten Abscheidestelle anfallende, noch grobe Fraktion vorteilhaft kontinuierlich zurückgeführt wird. Dabei wird bei der abgeänderten Ausführungsform der lose Schmutz abgesiebt und der Rest der Fraktion an die Speisevorrichtung weitergeleitet.A modified embodiment of the device provides that the fractions returned to the feed device are subjected to screening. The loose dirt particles are separated and no longer burden the process or the actual device. Air jet sieves and cyclones have proven to be particularly suitable for this. It has also been shown that the still coarse fraction obtained at the first separation point is advantageously continuously recycled. In the modified embodiment, the loose dirt is sieved off and the rest of the fraction is passed on to the feed device.

Die Vorrichtung besteht aus einer Speisevorrichtung, einer Trennvorrichtung mit verschließbaren Abscheidestellen, den Abscheidestellen zugeordneten Speichern zur Aufnahme der (unterschiedlich stark gereinigten) Fraktionen und einer internen Transportvorrichtung zur Rückführung des Materials an die Speisevorrichtung, zur Abführung der Abfälle und zum Transport der Gutfasern in den Hauptprozeß. Der interne Transport wird vorzugsweise pneumatisch abgewickelt.The device consists of a feeding device, a separating device with lockable separating points, the storage points assigned to the separating points for receiving the (differently cleaned) fractions and an internal transport device for returning the material to the feeding device, for removing the waste and for transporting the good fibers into the main process . The internal transport is preferably carried out pneumatically.

Bei einem pneumatischen Transport ist eine für alle Speicher wirksame Dosiervorrichtung angeordnet. Sie hat die Aufgabe, den amorphen (zusammenhängenden) Speicherinhalt in Flokken aufzulösen, die im Luftstrom transportfähig sind. Als Arbeitsorgan genügt eine Stiftwalze den Anforderungen. In unmittelbarer Nähe der Dosiervorrichtung Kann durch eine besondere Öffnung Hilfsluft zugemischt werden, wodurch der Flockenfluß im Luftstrom stabilisiert wird.In the case of a pneumatic transport, a metering device which is effective for all stores is arranged. Its task is to dissolve the amorphous (contiguous) storage content in flakes that can be transported in the air flow. As a working organ, a pin roller meets the requirements. In the immediate vicinity of the metering device, auxiliary air can be mixed in through a special opening, thereby stabilizing the flow of flakes in the air flow.

Die Speisevorrichtung weist Zuführmittel auf, die eine sequentielle Speisung der Trennvorrichtung mit den einzelnen Fraktionen erlauben, ohne daß es vorher zu einer Vermischung kommt. Derselbe Zweck kann erreicht werden, indem mehrere parallele Füllschächte angeordnet sind, die abwechselnd auf eine Speisewalze arbeiten.The feed device has feed means which allow a sequential feed of the separation device with the individual fractions without mixing beforehand. The same purpose can be achieved by arranging several parallel filling chutes that work alternately on a feed roller.

Zum Zweck der Umgebung von Trennorganen können weitere Speisewalzen angeordnet sein.Further feed rollers can be arranged for the purpose of the environment of separating elements.

Die Trennorgane der Trennvorrichtung bestehen aus Garniturwalzen bekannter Art. Es können mehrere Walzen angeordnet sein, die zueinander in Abnahme- oder Kardierstellung stehen. Zweckmäßig nimmt die Spitzenzahl und die Umfangsgeschwindigkeit der Walzen zu, wobei die Durchmesser abnehmen.The separating members of the separating device consist of clothing rollers of known type. Several rollers can be arranged which are in the removal or carding position with respect to one another. The number of tips and the peripheral speed of the rollers expediently increase, the diameters decreasing.

Die Gamiturwalzen besitzen Abscheidestellen bekannter Art. Sie sind verschließbar ausgebildet, wodurch sich in Verbindung mit einer internen Transportvorrichtung unterschiedliche Materialführungen durch die Vorrichtung ergeben bzw. verwirklichen lassen.The scraper rollers have separating points of a known type. They are designed so that they can be closed, so that in connection with an internal transport device different material guides can result or be realized by the device.

Die Faserführungsflächen der Trennorgane können gleichfalls Garnierungen tragend Insbesondere am ersten Trennorgan zwischen Speisewalze und erster Abscheidestelle kann eine Garnierung angeordnet werden, die nicht wie üblich in Kardierstellung zur Garnierung des Trennorganes steht. Zusammen mit Belüftungsöffnungen, die alternierend Blas- und Saugluft führen, wird das Material entstaubt. Die Garnierung wirkt als intensives Wirbelfeld, das den Staub löst. Die besondere Ausrichtung der Spitzen verhindert eine Füllung der Garnierung und die Fasern werden im Gegensatz zu den Staubpartikeln gehindert, dem Luftstrom zu folgen.The fiber guiding surfaces of the separating members can also carry garnishes. In particular, a garnish can be arranged on the first separating member between the feed roller and the first separating point, which is not, as usual, in the carding position for garnishing the separating member. The material is dedusted together with ventilation openings that alternate between blowing and suction air. The garnish acts as an intensive swirl field that loosens the dust. The special orientation of the tips prevents the garnish from filling and, unlike the dust particles, the fibers are prevented from following the air flow.

Bei der zusätzlichen Siebung in der Materialrückführung kommt neben einer Dosiervorrichtung eine Auflösevorrichtung zum Einsatz. Diese bewirkt eine intensive Durchmischung der Abgänge und der Transportluft. Insbesondere bei Verwendung eines Zyklons als Siebvorrichtung liegt die Auflösevorrichtung nahe dem Einlaufstutzen. Sie besteht aus garnierten, schnell rotierenden Walzen. Die Drehachsen der garnierten Walzen liegen vorteilhaft parallel zur Drehachse des Wirbels im Zyklon. Die Abnahme des Materials wird durch strömungsgünstige Leitbleche erleichtert, wobei zusätzlich Hilfsluft zugeführt wird.For the additional screening in the material return, an opening device is used in addition to a metering device. This causes an intensive mixing of the outlets and the transport air. In particular when using a cyclone as a sieving device, the opening device is close to the inlet connection. It consists of garnished, rapidly rotating rollers. The axes of rotation of the garnished rollers are advantageously parallel to the axis of rotation of the vortex in the cyclone. The removal of the material is facilitated by streamlined baffles, with additional auxiliary air being supplied.

Die Vorrichtung kann eine programmierbare Steuerung besitzen. Das Programm enthält alle notwendigen Informationen um eine Portion bzw. ein Arbeitsspiel mit allen Materialdurchläufen, Geschwindigkeiten der Trennorgane und verschiedener möglicher Wege zu realisieren. Die Programmierung erfolgt nach Erfahrungswerten. Wegen der großen Möglichkeiten in der Verfahrensführung kann die Vorrichtung ohne Umbauten durch bloßes Umsteuern auf verschiedene Abgangsarten eingestellt werden. Eine vollkommenere Ausbildung der Vorrichtung sieht den Einbau von Gebern vor, die auf relevante Parameter von Abgängen bzw. deren Fraktionen reagieren. Zusammen mit einem Prozeßführungssystem bekannter Art kann sich die Vorrichtung damit von selbst auf eine optimale Arbeitsweise einstellen.The device can have a programmable controller. The program contains all the information necessary to implement a portion or a work cycle with all material runs, speeds of the separating elements and various possible ways. Programming is based on experience. Because of the great possibilities in the implementation of the method, the device can be converted without ver by simply reversing to ver different outlet types can be set. A more complete design of the device provides for the installation of sensors which react to relevant parameters of outlets or their fractions. Together with a process control system of known type, the device can adjust itself to an optimal mode of operation.

Nachfolgend wird die Erfindung anhand eines Ausführungsbeispiels näher beschrieben. Es zeigt die

  • Fig. 1 eine erfindungsgemäße Vorrichtung in schematischer Darstellung,
  • Fig. 2 zusätzliche Vorrichtungen zur Ergänzung der erfindungsgemäßen Vorrichtung,
  • Fig. 3 ein Ausführungsbeispiel der Vorrichtung in halbschematischer Darstellung und
  • Fig. 4 ein Ausführungsbeispiel der Garnierung einer Faserführungsfläche.
The invention is described in more detail below using an exemplary embodiment. It shows the
  • 1 shows a device according to the invention in a schematic representation,
  • 2 additional devices to supplement the device according to the invention,
  • Fig. 3 shows an embodiment of the device in a semi-schematic representation
  • Fig. 4 shows an embodiment of the garnishing of a fiber guide surface.

In einer Vorrichtung nach Fig. 1 wird der aus einem Hauptprozeß 1, d. h. aus einer üblichen Baumwollreinigungsmaschine stammende Abgang 2 einer Speisevorrichtung 3 zugeführt. Die Speisevorrichtung 3 speist die Trennvorrichtung 4. Die Trennvorrichtung 4 besteht hier aus drei Trennorganen 41, 42 und 43, die vier Abscheidestellen 51, 52, 53 und 54 aufweisen, wovon drei verschließbar ausgebildet sind. Dadurch kann der Materialfluß in der Trennvorrichtung 4 unterschiedlich gesteuert werden. Den Abscheidestellen 51, 52 und 53 sind Speicher 61, 62 und 63 zugeordnet. Sie nehmen die anfallenden Fraktionen auf und geben sie an ein internes Transportsystem 7 ab. Zum internen Transportsystem 7 gehört eine Dosiervorrichtung 71, die aus einer amorphen (zusammenhängenden) Fraktion 81, 82, 83 Flocken erzeugt. Die Flocken können beispielsweise pneumatisch zur Speisevorrichtung 3 transportiert werden.In a device according to FIG. 1, the main process 1, i. H. outlet 2 originating from a conventional cotton cleaning machine is fed to a feed device 3. The feeding device 3 feeds the separating device 4. The separating device 4 here consists of three separating members 41, 42 and 43, which have four separating points 51, 52, 53 and 54, three of which are closable. As a result, the material flow in the separating device 4 can be controlled differently. The separating points 51, 52 and 53 are assigned memories 61, 62 and 63. They take up the resulting fractions and deliver them to an internal transport system 7. The internal transport system 7 includes a metering device 71, which produces flakes from an amorphous (connected) fraction 81, 82, 83. The flakes can be transported pneumatically to the feed device 3, for example.

Die Speisevorrichtung 3 besitzt in der gezeigten Ausführung parallele Füllschächte 31, 32 und 33, in die die einzelnen Fraktionen ohne gegenseitige Durchmischung einer Speisewalze zugeführt werden.In the embodiment shown, the feed device 3 has parallel filling shafts 31, 32 and 33, into which the individual fractions are fed to a feed roller without intermixing.

Mit Hilfe der erfindungsgemäßen Vorrichtung durchlaufen die an den Abscheidestellen 5 anfallenden Fraktionen 81, 82 und 83 die Trennvorrichtung 4 auf unterschiedlichen Wegen und mit unterschiedlichen, d. h. auf die jeweilige Fraktion abgestimmten Arbeitsgeschwindigkeiten der Trennorgane 41, 42 und 43. Die Gutfasern 9 werden in den Hauptarbeitsprozeß 1 zurückgeführt, während nach einer bestimmten Anzahl von Durchläufen der ausgebeutete Abfall 10 ausgeschieden wird. In dieser Art wird portionsweise weitergearbeitet.With the aid of the device according to the invention, the fractions 81, 82 and 83 occurring at the separation points 5 pass through the separation device 4 in different ways and with different, ie. H. Working speeds of the separating members 41, 42 and 43 matched to the respective fraction. The good fibers 9 are returned to the main working process 1, while after a certain number of runs the exploited waste 10 is separated out. This is continued in portions.

Eine Modifikation der Vorrichtung ist in Fig. 2 dargestellt. Innerhalb des internen Transportsystems 7 wird eine Siebvorrichtung eingefügt. Es hat sich gezeigt, daß in der ersten Fraktion 81 viele lose, d. h. nicht mit Fasern zusammenhängende Schmutzteile enthalten sind, die sofort abgetrennt werden können. Damit wird die Trennvorrichtung 4 entlastet. Es kann eine Fraktion kontinuierlich abgesiebt und rückgespeist werden. Es ist weiter möglich, daß alle Fraktionen 81, 82 und 83 nacheinander abgesiebt und zurückgespeist werden.A modification of the device is shown in FIG. 2. A screening device is inserted within the internal transport system 7. It has been shown that in the first fraction 81 many loose, i.e. H. Debris that is not related to fibers is contained and can be removed immediately. This relieves the separation device 4. A fraction can be continuously screened and fed back. It is also possible for all fractions 81, 82 and 83 to be screened and fed back in succession.

Als Siebvorrichtung wird hier ein bekannter Zyklon 101 eingesetzt, der von seinem Einlaufstutzen eine zusätzliche Auflösevorrichtung 102 besitzt. Sie erzeugt eine intensive Mischung von Material und Luft, wobei die Flocken bis zu ihren einzelnen Bestandteilen aufgelöst werden. Die dafür erforderliche, hinreichend große Luftmenge wird durch Hilfsluftführungen 104 zugeführt, die sowohl an der Auflösevorrichtung 102 als auch an der Dosiervorrichtung 71 münden. Sie erleichtern gleichzeitig die Materialabgabe an diesen Arbeitsstellen. Dem Zyklon 101 folgt die Speisevorrichtung 3. Die Vorrichtung nach Fig. 1 kann bei Bedarf um die Vorrichtungen aus Fig. 2 erweitert werden.A known cyclone 101 is used here as the screening device, which has an additional opening device 102 from its inlet connection. It creates an intensive mixture of material and air, whereby the flakes are broken down down to their individual components. The sufficiently large amount of air required for this is supplied by auxiliary air ducts 104, which open both at the opening device 102 and at the metering device 71. At the same time, they make it easier to deliver materials to these workplaces. The cyclone 101 is followed by the feed device 3. The device according to FIG. 1 can be expanded to include the devices from FIG. 2 if necessary.

In Fig. 3 ist ein einfaches Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung halbschematisch dargestellt. Als Trennorgane sind hier miteinander in Verbindung stehende Garniturwalzen 411, 422 und 433 eingesetzt. Sie besitzen verschließbare Abscheidestellen 511, 522 und 533. Die Garniturwalzen 411, 422 und 433 sind hierbei in Kardierstellung zueinander eingesetzt. Sie weisen eine steigende Spitzenzahl sowie eine abgestuft steigende Fliehkraftwirkung auf, d. h. daß die Fliehkraft an den Garniturwalzen von links nach rechts zunehmen soll. An der Abscheidestelle 554 kann das Material beispielsweise durch Saugluft und durch Blasluft sowie durch eine hier dargestellte Abnehmerwalze 554 abgenommen werden, die mit einer Abschlagwalze 555 zusammenarbeitet. Abnehmerwalze und Abschlagwalze 555 arbeiten geräuscharm und energiesparend. Analog zur prinzipiellen Ausführung einer Vorrichtung nach Fig. 1 sind Speicher 6 und ein internes Transportsystem 7 vorhanden. Eine dem Charakter einer Fraktion angepaßte, variable Materialführung ist daher möglich.In Fig. 3 a simple embodiment of a device according to the invention is shown semi-schematically. Interconnecting clothing rollers 411, 422 and 433 are used here as separating elements. They have lockable separation points 511, 522 and 533. The clothing rollers 411, 422 and 433 are used in carding position with respect to each other. They have an increasing number of peaks and a gradually increasing centrifugal force effect, i. H. that the centrifugal force on the clothing rollers should increase from left to right. At the separation point 554, the material can be removed, for example, by suction air and by blowing air, as well as by a take-off roller 554 shown here, which works together with a knock-off roller 555. Pickup roller and chopper roller 555 are quiet and energy-saving. Analogous to the basic design of a device according to FIG. 1, there are memories 6 and an internal transport system 7. A variable material guide adapted to the character of a fraction is therefore possible.

In Fig.4 ist eine besonders gestaltete Faserführungsfläche 600 dargestellt, wie sie insbesondere hinter einer Speisewalze 300 eingesetzt wird. Die Walze 300 in Fig. 4 entspricht der Walze über der Garniturwalze 411 in Fig.3. Die Ausführung der Fig. 4 dient der Erzeugung eines intensiven Reibungs- und Wirbelfeldes. Die Spitzen 601 stehen nicht in Kardierstellung zu den Spitzen der Garniturwalze 411. Zwischen den Spitzen 601 münden Blasluftführungen 603 und Saugluftführungen 604 in wechselnder Folge. Stark staubhaltige Filterabgänge beispielsweise können so entstaubt werden. Die faserigen Bestandteile können dem Saugluftstrom 604 wegen der besonderen Ausrichtung der Spitzen 601 der Garnierung nicht folgen.4 shows a specially designed fiber guide surface 600, as is used in particular behind a feed roller 300. The roller 300 in FIG. 4 corresponds to the roller over the clothing roller 411 in FIG. 3. 4 serves to generate an intense friction and vortex field. The tips 601 are not in carding position to the tips of the clothing roller 411. Blown air guides 603 and suction air guides 604 open in alternating sequence between the tips 601. Filter outlets with a high dust content, for example, can be dedusted in this way. The fibrous components cannot follow the suction air flow 604 due to the special orientation of the tips 601 of the garnish.

Entsprechend sind die Saugluftführungen der durch die Fliehkraft vorgegebenen Bewegungsrichtung entgegengesetzt.Accordingly, the suction air guides are opposite to the direction of movement predetermined by the centrifugal force.

Claims (5)

1. Device for separating the cotton wastes from a usual cotton cleaning machine into useable fibers and dirt, comprising a feed roller (300) and a corresponding feed trough as well as a corresponding separating device (4) provided with at least one separating roller rotating at high speed, characterized in that the separating device is provided with several interconnected carding cylinders (411, 422, 433) positioned in mutual carding position and each associated with collecting positions (511, 522, 533) for different fractions (81, 82, 83), with said collecting positions being selectively closeable for controlling the flow of material in the separating device (4), and that the carding cylinders (411, 422, 433) rotate in the same direction and produce an increasingly strong centrifugal action, i. e. they exhibit an increasing peripheral speed and/or reduced diameters.
2. Device according to claim 1, characterized in that the first cylinder (411) carries a taker-in like clothing and the following cylinders are provided with tambour-like clothings.
3. Device according to claim 2, characterized in that the cylinders (411, 422, 433) have increasing numbers of points.
4. Device according to any of the preceeding claims, characterized in that the fiber guiding surface (600) of the first cylinder (411) is provided with clothings not in carding position with respect to said cylinder, with blowing air ducts (603) and suction air ducts (604) being arranged alternately between the points (601).
5. Device according to any of the preceding claims, characterized in that a taker-of-roller (544) and a remover roller (555) are arranged behind the third cylinder (433).
EP19790100959 1978-04-05 1979-03-29 Apparatus for separating cotton waste from a customary cotton cleaning machine into reusable fibres and refuse Expired EP0006970B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3636/78 1978-04-05
CH363678A CH639141A5 (en) 1978-04-05 1978-04-05 DEVICE FOR SEPARATING THE COTTON OUTLETS OF A COTTON CLEANING MACHINE IN GOOD FIBERS AND DIRT.

Publications (2)

Publication Number Publication Date
EP0006970A1 EP0006970A1 (en) 1980-01-23
EP0006970B1 true EP0006970B1 (en) 1982-04-21

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Family Applications (1)

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EP19790100959 Expired EP0006970B1 (en) 1978-04-05 1979-03-29 Apparatus for separating cotton waste from a customary cotton cleaning machine into reusable fibres and refuse

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EP (1) EP0006970B1 (en)
AT (1) AT372413B (en)
CH (1) CH639141A5 (en)
CS (1) CS222287B2 (en)
DE (1) DE2962537D1 (en)
PL (1) PL117186B1 (en)
WO (1) WO1979000885A1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
AT379619B (en) * 1983-05-05 1986-02-10 Fehrer Ernst DEVICE FOR MANUFACTURING FIBER PLANTS

Families Citing this family (11)

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Publication number Priority date Publication date Assignee Title
US4301573A (en) * 1979-06-18 1981-11-24 Gunter & Cooke, Inc. Fiber processing apparatus and method
DE3138653A1 (en) * 1981-08-22 1983-04-14 Trützschler GmbH & Co KG, 4050 Mönchengladbach Device for the opening and cleaning of cotton waste
DE3413629C2 (en) * 1983-05-05 1986-05-07 Ernst Dr. Linz Fehrer Device for the production of nonwovens
AT384830B (en) * 1984-01-10 1988-01-11 Fehrer Textilmasch DEVICE FOR MANUFACTURING FIBER PLANTS
DE3522208A1 (en) * 1984-07-18 1986-01-23 Ernst Dr. Linz Fehrer DEVICE FOR MANUFACTURING FIBER PLANTS
EP0353482B1 (en) * 1988-08-02 1994-03-23 Trützschler GmbH & Co. KG Apparatus for opening and cleaning fibre material, especially cotton
AU5443690A (en) * 1989-04-18 1990-11-16 Lappage, James A method and apparatus for cleaning fibrous materials
US5331801A (en) * 1992-01-24 1994-07-26 Eco Fibre Canada Inc. Recycled yarns from textile waste and the manufacturing process therefor
US5369861A (en) * 1994-01-21 1994-12-06 Burlington Industries, Inc. Process for recycling denim waste
CN107142561A (en) * 2017-06-19 2017-09-08 武汉纺织大学 A kind of separating and reclaiming device of non-twist woven fabric
CN114592257B (en) * 2022-03-14 2023-06-30 重庆市永川区植成家俱厂 Palm cushion production line

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GB884245A (en) * 1960-07-20 1961-12-13 Fritz Streiff Improvements in textile carding machines
DE1202195B (en) * 1960-08-13 1965-09-30 Truetzschler & Co Textilmaschi Machine for mixing fiber material
GB922327A (en) * 1962-01-11 1963-03-27 Windle Engineering Company Inc Apparatus for recovery and cleaning of fibrous material from textile processing machines

Cited By (1)

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Publication number Priority date Publication date Assignee Title
AT379619B (en) * 1983-05-05 1986-02-10 Fehrer Ernst DEVICE FOR MANUFACTURING FIBER PLANTS

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Publication number Publication date
CH639141A5 (en) 1983-10-31
WO1979000885A1 (en) 1979-11-01
ATA252079A (en) 1983-02-15
AT372413B (en) 1983-10-10
PL117186B1 (en) 1981-07-31
DE2962537D1 (en) 1982-06-03
EP0006970A1 (en) 1980-01-23
PL214704A1 (en) 1980-02-11
CS222287B2 (en) 1983-06-24

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